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OpenStudy (anonymous):
Convert 4(cos(240°) + isin(240°)) into rectangular form. A. (-2,-2√3) B. (2√3,-2) C. (-4,4√3) D. (4,4√2)
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OpenStudy (anonymous):
@blanderos24
OpenStudy (anonymous):
http://faculty.tarleton.edu/jgresham/Math%20109/notes_polar_complex_numbers.pdf this should help you
OpenStudy (phi):
the first step is plot where 240º is on the unit circle. |dw:1401914176751:dw|
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